Regarding when FX TV will be out - please stay tune to up coming JavaOne (early June in San Fransisco).

Regarding the IPTV support, the short answer is yes.There is no difference between a BD-J player, a MHP box, or an IPTV STB, in theory. And FX will be deployable on current Java based middleware including those platforms

There could be some interesting announcements around Java FX for TV around JavaOne this year (early June in San Fransisco). This is something that I am eagerly waiting and hoping for. After the overwhelming response on mobile, TV will be the next.